ruby math pi

i) The series formed by the reciprocals of the terms of a geometric series is also a geometric series. ii) There is no general method of finding the sum of a harmonic progressi..

i) 1 + 4 + 7 + 10 + ... is a series in which first term is 1, second term is 4, third term is 7 and so on. ii) 3 - 9 + 27 - 81 + ... is also a series in which the first term is 3, second term is -9, third term is 27 and so ..

Matrix multiplication is not commutative in general. Matrix multiplication is associative i.e., (AB)C = A(BC), whenever both sides are defined. Matrix multiplication is distributive over matrix addition i.e., (i) A(B + C) = AB + BC (ii) (A + B)C = AB + AC whenever both sides of equa..

4. Sum the following: i) 1.2 + 2.4 + 3.8 +.... to n ter..

Find sin (π + θ) . => - sin θ or cos θ or sin θ or - cos θ..

Name the property illustrated. 0 + π = π . => additive identity property or additive inverse property or distributive property of addition. or commutative property of addition..

Which of the following functions has the period 10 π ? => y = 8 sin x or y = cos 20 x or y = cos 10 x or y = 4 sin 1 5 x..

The circumference of a circle is 22π inches . Find the diameter of the circle. => 22 inches or π inches or 22π inches or 44 inches..

What is the surface area of the sphere in the figure? [Use π = 3.14.] => 1300 cm 2 or 1256 cm 2 or 1500 cm 2 or 1100 cm 2..

The diameter of a circle is 16 ft. Find the circumference. (Use π = 3.14.) => 16 ft or 30.24 ft or 50.24 ft 2 or 50.24 ft..